Copy Constructor, default Constructor, Parameterized Constructor

/* ============================================ File Name : CopyConstructor.java WebSite : http://javaproglang.blogspot.in/ Facebook : https://www.facebook.com/bintu.chaudhary.mks Twitter : https://twitter.com/bintuchaudhary Created By : Bintu Chaudhary ============================================ */ import java.io.*; class box { int h,w; //data members box() // default constructor { h=10; w=20; } box(int x, int y) { h=x; w=y; } box(box obj) // Copy Constructor { h=obj.h; w=obj.w; } void show() // Member Function { System.out.println("\n\tHeight of Box is :\t"+h); System.out.println("\n\tWidth of Box is :\t"+w); } } class CopyConstructor { public static void main(String args[]) { box obj_box=new box();//instance of default constructor obj_box.show(); box obj_box1=new box(120,30);//Instance of Parameterized Constructor obj_box1.show(); box obj_box2=new box(obj_box1);//Instance of Copy Constructor obj_box2.show(); } }

Output of "CopyConstructor.java"

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